/**
 * Given two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is counted as 1 step.)
 * You have the following 3 operations permitted on a word:
 * a) Insert a character
 * b) Delete a character
 * c) Replace a character
 */
/**
 * @author Ivan
 *
 */
package problem72_Edit_Distance;